# Fartlek vs Morphy

The clearest difference is update cadence: Fartlek at every 4 days against Morphy's every 2 weeks. Fartlek also leads on iOS requirement (18.5 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Fartlek sells 2 in-app purchases, starting at $4.99 per month and Morphy sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Fartlek ships an update every 4 days, Morphy every 2 weeks. The most recent releases landed on October 19, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Fartlek | Morphy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 29 MB | 15 MB |
| Requires iOS | **18.5** | 26.2 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Axis SA](https://appshunter.io/developer/1621529800) | [Sweaty Studio](https://appshunter.io/developer/1831793453) |

## What reviewers say

### Fartlek

[App page](https://appshunter.io/ios/app/fartlek-interval-run-timer/id6752724674)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly plan | $4.99 | per month |
| Yearly Premium | $29.99 | per year |


### Morphy

[App page](https://appshunter.io/ios/app/morphy/id6759597782)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Morphy Pro Monthly | $2.99 | per month |
| Morphy Pro | $8.99 | one-time |


## Frequently asked questions

### Is Fartlek free?

Fartlek is free to download, with in-app purchases available.

### Is Morphy free?

Morphy is free to download, with in-app purchases available.

### Do Fartlek or Morphy have ads?

Neither Fartlek nor Morphy shows ads.

### Which is updated more often, Fartlek or Morphy?

Fartlek ships an update every 4 days, and Morphy every 2 weeks. Most recently, Fartlek was updated on October 19, 2026 and Morphy on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*